# Pololu 150:1 Micro Gearmotor HPCB 12V

> Pololu #3042 150:1 Micro Metal Gearmotor HPCB 12V (N20 size): 220 rpm and 0.08 A no-load at 12 V, 1.8 kg·cm / 0.75 A stall (extrapolated), 1.0 W max output, 28 % peak efficiency, 150.58:1 metal gearbox, 10 × 12 × 25.6 mm max, Ø3 mm × 10 mm D-shaft, two M1.6 face holes, 9.5 g.

- Manufacturer: Pololu
- Part number: 3042
- Category: Motors
- Canonical page: https://www.xirkit.io/products/pololu-150-1-micro-gearmotor-hpcb-12v-10c1
- Pinout: https://www.xirkit.io/products/pololu-150-1-micro-gearmotor-hpcb-12v-10c1/pinout
- Structured JSON: https://www.xirkit.io/products/pololu-150-1-micro-gearmotor-hpcb-12v-10c1/data.json
- Source: Xirkit structured parts catalog — every value traced to a cited document; unknowns are explicit.

## Key specifications

| Property | Value |
| --- | --- |
| Motor type | gearmotor |
| Rated voltage | 12 V |
| Rated torque | 0.041 N·m |
| Stall torque | 0.177 N·m |
| Rated speed | 170 rpm |
| No-load speed | 220 rpm |
| Rated current | 0.22 A |
| Gear ratio | 150.58:1 |
| Shaft diameter | 3 mm |
| Encoder | none |
| Dimensions | 12 × 10 × 35.6 mm |

## Pinout (2 pins, 0 with electrical limits)

| Pin | Position | Kind | Chip pad | Functions | VIH | VIL | VOH | VOL | IOH | IOL | 5 V tolerant |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| M1 | — | motor plus | — | m1 | — | — | — | — | — | — | — |
| M2 | — | motor minus | — | m2 | — | — | — | — | — | — | — |

## Where to buy

| Supplier | Price | Stock | Checked | URL |
| --- | --- | --- | --- | --- |
| www.pololu.com | 26.45 USD | in_stock | 2026-10-01 | https://www.pololu.com/product/3042 |

## FAQ

**How much does the Pololu 150:1 Micro Gearmotor HPCB 12V cost?**

From $26.45 at www.pololu.com. Prices are observed unit prices before tax and shipping.

**What are the Pololu 150:1 Micro Gearmotor HPCB 12V dimensions?**

12 × 10 × 35.6 mm. A STEP model is available for enclosure fit checks.

**Where does this Pololu 150:1 Micro Gearmotor HPCB 12V data come from?**

Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.

## Sources

- [Pololu 150:1 Micro Gearmotor HPCB 12V datasheet](https://www.pololu.com/file/0J1487/pololu-micro-metal-gearmotors-rev-6-2.pdf)
- [www.pololu.com listing](https://www.pololu.com/product/3042)

## Part graph

### Alternatives (by use case)

- [Pololu 210:1 Micro Gearmotor HPCB 12V](https://www.xirkit.io/products/pololu-210-1-micro-gearmotor-hpcb-12v-616d) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $26.45
- [Pololu 380:1 Micro Metal Gearmotor HP 6V](https://www.xirkit.io/products/pololu-380-1-micro-metal-gearmotor-hp-6v-07c0) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $23.95
- [Pololu 1000:1 Micro Metal Gearmotor HP](https://www.xirkit.io/products/pololu-1000-1-micro-metal-gearmotor-hp-1a17) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $35.95
- [Pololu 210:1 Micro Metal Gearmotor MP 6V](https://www.xirkit.io/products/pololu-210-1-micro-metal-gearmotor-mp-6v-4c06) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $23.95
- [Pololu 250:1 Micro Metal Gearmotor HP 6V](https://www.xirkit.io/products/pololu-250-1-micro-metal-gearmotor-hp-6v-4d3d) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $23.95
- [Pololu 150:1 Micro Metal Gearmotor MP 6V](https://www.xirkit.io/products/pololu-150-1-micro-metal-gearmotor-mp-6v-db85) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $23.95
- [Pololu 298:1 Micro Gearmotor HPCB 12V](https://www.xirkit.io/products/pololu-298-1-micro-gearmotor-hpcb-12v-18c6) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $26.45
- [Pololu 250:1 Micro Gearmotor HPCB 12V](https://www.xirkit.io/products/pololu-250-1-micro-gearmotor-hpcb-12v-07ab) — Both serve robot joints and actuation — check the trade-offs; $26.45 vs $26.45